Preparation of Chiral Epoxy Resins and the Optically Active Cured Products

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Samples</td><td class="align_center"><i>α</i><sub>D</sub><sup>20 (a)</sup></td><td class="align_center">ee (%)<sup>(b)</sup></td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">DGEBA</td><td class="align_center">0°</td><td class="align_center">–</td></tr><tr><td class="align_left">R-DGEBA</td><td class="align_center">14.3°</td><td class="align_center">99.99</td></tr><tr><td class="align_left">S-DGEBA</td><td class="align_center">−14.1°</td><td class="align_center">91.74</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td><div><sup>a</sup>Specific rotation measured at 20°C using sodium light lamp D. <sup>b</sup>Enantiomeric excess.<br/></div></td></tr></table>

<div>Results from HPLC and polariscope measurements.</div>

Advances in Polymer Technology

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Table 1

Table 1: Preparation of Chiral Epoxy Resins and the Optically Active Cured Products 